Thanks for your reply. I logged on to Myvirginmedia but am unable to see any option to enable me to order the V6. Under upgrades and offers TV it just says that I'm on the top package and no option to upgrade.
I called 150 and was surprised when the agent advised me to hold off installing the V6 and gave me a few compelling arguments to support his advice. I therefore will wait until later next year until the new technology is more established.